Wacker Neuson G 85 Repair Manual

Safety Information

Operating Safety

Service Safety

Operator Safety while using Internal Combustion Engines

Towing Safety

Theory of Operation

Introduction

Terminology

Electrical Testing Techniques

Probing ECM Plugs and Pins

ECM Background Information

Normal Boot-up Sequence

Display Variables and Values

Ecm display screens—start switch in remote position

Additional Variables Monitored by the ECM

Voltage Display Errors

ECM Automatic Engine Shutdown Conditions

ECM Circuit Boards

Control wiring numbering & colors

Removing and Installing the ECM

Checking Power to the ECM

Checking Outgoing Power From the ECM

Checking Temperature Sender

Fuel Sender Failure and Low Fuel Fault

Calibrating ECM Voltage Display

Calibrating ECM AC Amperage Display

Calibrating ECM AC Frequency Display

Calibrating ECM DC Display

Checking the ECM CAN BUS Circuit

Checking the Main Circuit Breaker

ECM Plugs and Pins

John Deere Engines With ECU Background

Locations of Engine Electrical Components

Engine Electrical Components

Checking the Fuses

Checking the Engine Control Module (ECM)

Checking the Emergency Stop Switch

Checking the Starter Relay

Checking the Starter Solenoid

Checking the Intake Heater Relay

Checking the Lug Door Switch

Checking the Voltage Adjusting Rheostat

Checking the Auxiliary Winding

Checking the Exciter Stator

Checking the AVR Sensing Wires

Flashing the Generator (checking the excitation system)

Checking Stator Windings at the Lugs

Checking the rectifier diodes—thread-in style

Checking the rectifier diodes—solder-in style

Checking the Main Rotor Winding

Checking the Exciter Rotor Winding

Checking Stator Windings at the Voltage Selector Switch

Tools

Removing the Roof

Preparing Unit for Generator Removal

Replacing the Generator

Removing the AVR

Installing the AVR

Removing the Engine

Installing the Engine

Replacing the Fuel Tank

Replacing the Emergency Stop Switch (older)

Replacing the Emergency Stop Switch (newer)

Replacing the Diodes

Replacing the Voltage Selector Switch (VSS)

Engine Data

Generator Data

Trailer and Skid Data

Dimensions

Engine wiring diagram—john deere with ecu

ECU Harness Connector

ECU Wiring Diagram

Technical data

Generator Wiring Diagram

Torque values